LinearGradient crash with xlink:href

[gosuperninja]

xlink:href are not supported, the use of it causes a crash. linearGradient that use xlink:href have no children elements which causes a call on undefined.

Example

<svg id="b809eb86-ec6b-4213-aa3e-83f4128e49a5" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink" width="1082" height="725" viewBox="0 0 1082 725">
    <defs>
        <linearGradient id="b7709055-0dd4-48d6-ac10-5a758f15d1a1" x1="443.56" y1="792.13" x2="443.56" y2="251.5"
                        gradientUnits="userSpaceOnUse">
            <stop offset="0" stop-color="gray" stop-opacity="0.25"/>
            <stop offset="0.54" stop-color="gray" stop-opacity="0.12"/>
            <stop offset="1" stop-color="gray" stop-opacity="0.1"/>
        </linearGradient>
        <linearGradient id="f59ba046-7ebe-407e-be3d-c62856fc1078" x1="712" y1="788.54" x2="712" y2="248.5"
                        xlink:href="#b7709055-0dd4-48d6-ac10-5a758f15d1a1">
        </linearGradient>
    </defs>
</svg>

[msand]

That doesn't render anything in any browser or other svg viewer either. You need to refer to the gradient in a fill or stroke attribute using e.g. fill="url(#idOfGradient)" in some other element which causes some geometry to render. Check e.g. https://github.com/react-native-community/react-native-svg#lineargradient

<Svg
    height="150"
    width="300"
>
    <Defs>
        <LinearGradient id="grad" x1="0" y1="0" x2="170" y2="0">
            <Stop offset="0" stopColor="rgb(255,255,0)" stopOpacity="0" />
            <Stop offset="1" stopColor="red" stopOpacity="1" />
        </LinearGradient>
    </Defs>
    <Ellipse cx="150" cy="75" rx="85" ry="55" fill="url(#grad)" />
</Svg>

[msand]

Hmm, apparently the spec allow inheritance here:
https://www.w3.org/TR/SVG11/pservers.html#LinearGradientElementHrefAttribute
https://svgwg.org/svg2-draft/pservers.html#LinearGradientElementHrefAttribute

[msand]

https://www.w3.org/TR/SVG/pservers.html#PaintServerTemplates
https://svgwg.org/svg2-draft/pservers.html#PaintServerTemplates

[MillerGregor]

in case anyone else runs into this..

IF you have access to the source
AND you're using Illustrator

save as settings:
SVG 1.1
type: SVG
subsetting: none
Image location: (whatever)
css properties: Presentation Attributes

I then process via gulp

gulpfile.js:

var gulp = require('gulp');
var svgmin = require('gulp-svgmin');
var replace = require('gulp-replace');

gulp.task('svg', function() {
  return gulp
    .src('./svg/in/*.svg')
    .pipe(
      svgmin({
        plugins: [
          { removeXMLNS: true },
          {
            inlineStyles: { onlyMatchedOnce: false, removeMatchedSelectors: false }
          },
          { convertStyleToAttrs: true }
        ]
      })
    )
    .pipe(
      svgmin({
        plugins: [{ removeStyleElement: true }, { removeEmptyContainers: true }]
      })
    )
    .pipe(
      svgmin({
        plugins: [
          { removeEmptyContainers: true },
          {
            removeAttrs: {
              attrs: '(class|data-name)'
            }
          },
          {
            convertShapeToPath: {
              convertArcs: true
            }
          }
        ]
      })
    )
    .pipe(
      svgmin({
        plugins: [
          {
            mergePaths: {
              collapseRepeated: true,
              leadingZero: true,
              negativeExtraSpace: true
            }
          }
        ]
      })
    )
    .pipe(
      replace(/xlink:href=/g, (match, p1, offset, string) => {
        return `href=`;
      })
    )
    .pipe(
      replace(/stop-color=/g, (match, p1, offset, string) => {
        return `stopColor=`;
      })
    )
    .pipe(
      replace(/clip-path=/g, (match, p1, offset, string) => {
        return `clipPath=`;
      })
    )
    .pipe(
      replace(/stroke-linecap=/g, (match, p1, offset, string) => {
        return `strokeLinecap=`;
      })
    )
    .pipe(
      replace(/stroke-linejoin=/g, (match, p1, offset, string) => {
        return `strokeLinejoin=`;
      })
    )
    .pipe(
      replace(/stroke-width=/g, (match, p1, offset, string) => {
        return `strokeWidth=`;
      })
    )
    .pipe(
      replace(/stroke-miterlimit=/g, (match, p1, offset, string) => {
        return `strokeMiterlimit=`;
      })
    )
    .pipe(
      replace(/="(-?[0-9]*\.[0-9]*)"/g, (match, p1, offset, string) => {
        return `={${p1}}`;
      })
    )
    .pipe(
      replace(/<(\w)/g, (match, p1, offset, string) => {
        return '<Svg.' + p1.toUpperCase();
      })
    )
    .pipe(
      replace(/<\/(\w)/g, (match, p1, offset, string) => {
        return '</Svg.' + p1.toUpperCase();
      })
    )
    .pipe(gulp.dest('./svg/out'));
});

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. You may also mark this issue as a "discussion" and I will leave this open.

[stale]

Closing this issue after a prolonged period of inactivity. Fell free to reopen this issue, if this still affecting you.